The phrase "large swatch" refers to a big sample or piece of a material, such as fabric or paint, which is used to show its color or texture. Full definition
For the toward, as with other BOOMERANG works, lives with intricacy and the challenge of trusting in a world where as much care and import is manifested in small gestural communication as it is in large swatches of risk - taking motion. (mcachicago.org)
Test paint in large swatches on your walls and examine the options at different times of day with different light fixtures on. (bhg.com)
Howell, working with scientists at the National Physical Laboratory in Teddington, illuminated large swatches of dyed woollen material and smaller pieces of undyed silk with different intensities of artificial light for varying lengths of time. (newscientist.com)